Cita APA (7a ed.)

Bühringer, G., Duwe, A., & Bühringer, G. (1998). Longitudinal risk kohort study on the onset, course, prevalence and prevention of illegal drug abuse. European addiction research, 4(4), 205-206.

Cita Chicago Style (17a ed.)

Bühringer, Gerhard, A. Duwe, y Gerhard Bühringer. "Longitudinal Risk Kohort Study on the Onset, Course, Prevalence and Prevention of Illegal Drug Abuse." European Addiction Research 4, no. 4 (1998): 205-206.

Cita MLA (8a ed.)

Bühringer, Gerhard, et al. "Longitudinal Risk Kohort Study on the Onset, Course, Prevalence and Prevention of Illegal Drug Abuse." European Addiction Research, vol. 4, no. 4, 1998, pp. 205-206.